added to example, minor mods to code cells 2,3

Author: Sanmitra Ghosh

docs/source/notebooks/ODE_parameter_estimation.ipynb

@@ -56,5 +56,6 @@ Gallery.contents = {
     "lda-advi-aevb": "Variational Inference",
     "normalizing_flows_overview": "Variational Inference",
     "gaussian-mixture-model-advi": "Variational Inference",
-    "GLM-hierarchical-advi-minibatch": "Variational Inference"
+    "GLM-hierarchical-advi-minibatch": "Variational Inference",
+    "ODE_parameter_estimation": "Inference in ODE models"
 }